Turn your roof into a long-term energy solution with professionally installed solar panels designed to help reduce electricity costs and improve energy efficiency.
HIES Consumer Code member · NAPIT registered · MCS certified · Trustpilot reviewed
HCE Ltd designs and installs solar PV systems for UK homeowners. We're MCS-certified, NAPIT-registered and members of the HIES Consumer Code, and every job starts the same way: a free, no-obligation survey and clear, honest advice about whether solar genuinely suits your home. If it doesn't, we'll say so.
Most installations are completed within 1–2 days, and panels are designed to last 25–30 years — so the decisions made at the survey and design stage matter for decades. Here's how the whole process works, what it typically costs in the UK, and what to expect on the day.
Local roofs raise local questions, so we've written the county detail up separately: solar panel installation for Surrey homes, Sussex solar installation and solar installation in Hampshire each cover the light, the housing stock and the planning quirks of their patch.
Quick answer
Solar panel installation:
Figures: Energy Saving Trust, July 2026 prices — national figures, not an HCE quote.
Every HCE installation follows the same straightforward path, from first call to switch-on. No pressure at any stage, just clear advice.
A free, no-obligation callback to talk through your home, your electricity usage and what you want solar to do — lower bills, more independence from price rises, or groundwork for a battery or EV charger later. This is a conversation, not a sales pitch. You'll get straight answers to your questions and a clear idea of whether it's worth going further.
We survey the property properly before quoting: roof size, pitch and orientation, shading from chimneys, trees or neighbouring buildings, the condition of the roof covering, loft access, and where the inverter and cabling will run. We also confirm at this stage whether your installation falls under permitted development — most do — or whether any planning constraints apply. From the survey we design a system sized to your actual usage, not the biggest array that fits. You get a written quote that sets out exactly what's included: panels, inverter, mounting kit, scaffolding, electrical work and certification.
Most residential installations are completed within 1–2 days, depending on the system size and property type. Scaffolding goes up beforehand, the panels and electrical work are done by qualified installers, and the system is tested and commissioned before we leave.
You receive the paperwork that matters: your MCS certificate (which you'll need to register for export payments), electrical certification, warranty documents for the panels and inverter, and a walkthrough of how to read your system's performance. If anything is unclear after we've gone, you can call us.
Solar panels generate direct current (DC) electricity whenever daylight hits them. An inverter converts that into the alternating current (AC) your home runs on. Your appliances use the solar power first, and anything you're not using at that moment is either exported to the grid or — if you have one — stored in a battery for the evening.
Two points that surprise people. First, panels don't need direct sunshine: they still generate on cloudy days, just at a reduced output compared to bright conditions, which is why solar stacks up in the UK climate. We've written more on this in do solar panels work on cloudy days. Second, you stay connected to the grid throughout — solar reduces what you buy, and the grid covers the gap at night and in midwinter.
A smart meter measures what you export, which is how you get paid for surplus power under the Smart Export Guarantee (more on that below).
Most UK roofs are, but “most” isn't “all” — and this is exactly what the free survey establishes before you commit to anything.
A south-facing roof gives the highest output, but east- and west-facing roofs are genuinely viable: a split array catches morning sun on one face and afternoon sun on the other, which actually matches when many households use electricity. North-facing-only roofs are usually a poor investment, and we'll tell you if that's your situation.
A chimney, dormer, TV aerial or neighbouring tree that shades part of the array for part of the day matters more than most people expect. The survey maps shading across the day, and the design works around it — sometimes with panel-level optimisation, sometimes by avoiding the shaded area altogether.
Panels will sit on your roof for 25–30 years, so the roof covering and timbers need to be sound first. If your roof needs work, it's far cheaper to do it before the panels go on, and we'd rather tell you that at survey than discover it on installation day.
In most cases, domestic solar falls under permitted development, meaning no planning application is needed — subject to conditions. On a pitched roof, panels must project no more than 0.2 metres from the roof surface and must not sit higher than the highest part of the roof (excluding the chimney); on a flat roof the limit is 0.6 metres. Listed buildings always need listed building consent, and in conservation areas panels can't be installed on a wall facing a highway — some conservation areas also carry an Article 4 direction that removes permitted development rights entirely. We confirm all of this during your survey, so you're never left guessing. (Rules summarised from the Planning Portal — see sources.)
Honest answer: it depends on your roof, your usage and the system size — which is why we quote from a survey rather than a postcode. But the national picture gives you a sensible starting point.
The Energy Saving Trust puts the average cost of a typical 3.5 kWp home solar system at around £6,100 installed. A system that size generates over 3,000 kWh a year — more than the roughly 2,700 kWh a year the Energy Saving Trust uses as its medium-use assumption behind these figures (Ofgem's separate "typical household" figure is 2,500 kWh) — though you'll still buy some grid power because generation and usage don't always line up. For a typical three-bedroom home, the Energy Saving Trust estimates annual savings of roughly £818 to £953 once Smart Export Guarantee payments are included (based on July 2026 fuel prices), with the system typically paying for itself in 10–12 years.
Two things help the maths at the moment. Solar installations are zero-rated for VAT — the 0% rate on energy-saving materials runs until 31 March 2027, after which it reverts to 5%. And panel prices have fallen a long way over the past decade while electricity prices have risen, which is what's shortened payback periods.
To be clear: these are typical UK figures from public sources, not an HCE quote. Your numbers depend on your roof and your usage, and that's what the free survey works out. For a deeper walkthrough of the sums, read how much can solar panels save.
Solar panels are designed to last 25–30 years, and many systems continue to perform well beyond that timeframe. Output declines gradually over the decades rather than stopping — a well-made panel in year 25 still produces the large majority of its original output, and manufacturers publish performance warranties setting out exactly what's guaranteed year by year. Ask to see them; we'll happily walk you through what they mean.
The inverter is the hardest-working component and typically won't match the panels' lifespan, so it's worth understanding how yours is warranted when you compare quotes. Beyond that, maintenance is minimal: UK rain does most of the cleaning, and your main job is glancing at the generation figures occasionally so you'd notice if something changed.
Less disruption than most people expect. Here's the usual shape of it.
Scaffolding is erected a day or two before, so access is ready when the installation team arrives. On the day, the roof team fits the mounting rails — anchored to the rafters, not just the tiles — and secures the panels to the rails. Meanwhile the electrical side is prepared: the inverter is mounted (typically in the loft, a garage or a utility area), cabling is run, and the system is connected to your consumer unit.
Your electricity will be switched off briefly during the final connection — usually well under an hour — and it's helpful if someone is home at the start of the day to confirm access and cable routes. The system is then tested, commissioned and switched on, and most homes are generating before the team leaves. Most residential installations are completed within 1–2 days, depending on the system size and property type; scaffolding usually comes down within the following week.
Afterwards, the installation is registered and your MCS certificate and electrical paperwork follow — the documents you'll need for export payments.
When your panels generate more than your home is using, the surplus doesn't go to waste. Under the Smart Export Guarantee (SEG) — the Ofgem-administered scheme that replaced the old feed-in tariff for new installations — electricity suppliers with 150,000 or more domestic customers must offer a tariff that pays you for every kilowatt-hour you export.
The practical details worth knowing:
Want to see these numbers for your own bill? Try the interactive savings calculator — same cited figures, your inputs.
Page-specific questions. The general ones — savings, cloudy days, planning, lifespan — are covered above and on our main FAQs page.
Yes. Solar significantly reduces what you buy from the grid, but it doesn’t remove the bill: you’ll still import power at night, in the depths of winter, and whenever usage outpaces generation — plus the daily standing charge. Anyone who promises solar will wipe out your bill entirely is overselling. What solar does is shrink the unit-rate part of the bill for 25–30 years and shield you from a portion of every future price rise.
Almost every roof installation needs scaffolding — it’s a safety requirement for working at height, not an optional extra. It’s arranged as part of the job, and your written quote will set out exactly what’s included so there are no surprise costs on the day.
Not when they’re installed properly. On a standard pitched roof, the mounting rails anchor to the rafters beneath the tiles using brackets designed for the job, and flashings keep the weatherproofing intact. The survey checks your roof’s condition first — if we find tiles or timbers that need attention, we’ll tell you before installation rather than build on top of a problem.
Sometimes, but it’s rarely as simple as clipping on extras. The inverter is sized to the original array, and a larger system can change your grid-connection paperwork with the network operator. If you think your usage will grow — an EV, a heat pump, a growing family — tell us at the design stage and we’ll size the system, or at least the inverter, with that in mind. It’s cheaper to plan headroom than to retrofit it.
Very little. There are no moving parts, and UK rain keeps panels reasonably clean on most roofs — occasional cleaning helps if you’re near trees or on a shallow pitch. The sensible habit is checking your generation figures now and then, so a fault or a new source of shading gets noticed rather than quietly costing you output.
Your network operator (the company that runs the local wires, separate from your supplier) is notified as part of the installation paperwork — that’s handled for you. You’ll only deal with your supplier when you set up a Smart Export Guarantee tariff to get paid for what you export, and you can shop around suppliers for that.
Request a free, no-obligation survey and we'll give you straight answers about your roof, your likely generation and your payback — and if solar isn't right for your home, we'll tell you that too. No pressure, just clear advice.
Get a free quote · Call 0204 547 1892 · Or see the equipment we install: EnSmart systems
